andrewgiessel · August 29, 2015 14:14
diff --git a/broken.py b/broken.py
 import pandas as pd
 import numpy as np


 df = pd.DataFrame.from_csv('temp.csv')
 old_index = df.index
 new_index = old_index.union(pd.DatetimeIndex([old_index[5] + np.timedelta64(1,'s')]))
 df.reindex(new_index)
diff --git a/example.ipynb b/example.ipynb
diff --git a/temp.csv b/temp.csv
diff --git a/works.py b/works.py
 import pandas as pd
 import numpy as np

 size = 10
 data = np.random.random(size)
 old_index = pd.date_range('20150101',freq='D',periods=size)
 df = pd.DataFrame(data, index=old_index)

 new_index = old_index.union(pd.DatetimeIndex([old_index[5] + np.timedelta64(1,'s')]))
 df.reindex(new_index)
	import pandas as pd
	import numpy as np


	df = pd.DataFrame.from_csv('temp.csv')
	old_index = df.index
	new_index = old_index.union(pd.DatetimeIndex([old_index[5] + np.timedelta64(1,'s')]))
	df.reindex(new_index)
	import pandas as pd
	import numpy as np

	size = 10
	data = np.random.random(size)
	old_index = pd.date_range('20150101',freq='D',periods=size)
	df = pd.DataFrame(data, index=old_index)

	new_index = old_index.union(pd.DatetimeIndex([old_index[5] + np.timedelta64(1,'s')]))
	df.reindex(new_index)